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Issue
Korean Journal of Chemical Engineering,
Vol.8, No.3, 137-142, 1991
HYDRODENITROGENATION REACTION OF QUINOLINE WITH NASCENT HYDROGEN GENERATED FROM WATER GAS SHIFT REACTION
Kim SB, Choi MJ, Park DC, Lee KW
The HDN of quinoline was investigated for the purpose of utilizing the hydrogen which could be generated from the water gas shift reaction(WGSR). The optimum concentration of hydrogen were produced under 1.5 of water to carbon monoxide mole ratio and 6 hr-1 of space velocity at 390℃ of temperature during WGSR over Co-Mo/Υ-Al2O3 catalyst. The HDN reactions were compared by using the pure hydrogen and the nascent hydrogen which was produced by a WGSR. The pure hydrogen gave much higher activity in the overall HDN reaction than the nascent hydrogen. However, kinetic study on the hydrogenation, hydrogenolysis and cracking reaction steps showed that only at the cracking reaction step the nascent hydrogen gave the superiority to the pure hydrogen. This inferiority of the nascent hydrogen in overall HDN reaction than the nascent hydrogen. However, kinetic study on the hydrogenation, hydrogenolysis and cracking reaction steps showed that only at the cracking reaction step the nascent hydrogen gave the superiority to the pure hydrogen. This inferiority of the nascent hydrogen in overall HDN reaction could be resulted from the negative effect of water which should be accompanied during WGSR. The conversion of the HDN reaction was maximized at the water pressure of 150kpa.
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